XML 67 R55.htm IDEA: XBRL DOCUMENT v3.25.1

Basis of Presentation, Summary of Significant Accounting Policies and Change in Accounting Principles - Narrative (Details) - option	3 Months Ended
	Mar. 31, 2025	Dec. 31, 2024
Accounting Policies [Abstract]
Accounts receivable netted against claims payable	70.00%	67.00%
Accounts receivable, net eligible for net basis settlement	64.00%
Number of leases option	1

X

- Definition

Number Of Options To Renew Leases

+ References

No definition available.

+ Details

Name:	evh_NumberOfOptionsToRenewLeases
Namespace Prefix:	evh_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Right of Offset, Percentage of Accounts Receivable, Net Eligible for Net Basis Settlement

+ References

No definition available.

+ Details

Name:	evh_RightOfOffsetPercentageOfAccountsReceivableNetEligibleForNetBasisSettlement
Namespace Prefix:	evh_
Data Type:	dtr-types1:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Right of Offset, Percentage of Accounts Receivable Netted Against Claims Payable

+ References

No definition available.

+ Details

Name:	evh_RightOfOffsetPercentageOfAccountsReceivableNettedAgainstClaimsPayable
Namespace Prefix:	evh_
Data Type:	dtr-types1:percentItemType
Balance Type:	na
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	us-gaap_AccountingPoliciesAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration